diff --git a/external/bsd/mdocml/dist/mdoc_action.c b/external/bsd/mdocml/dist/mdoc_action.c
index 1bddd3add238..26bf3f5f0e6a 100644
--- a/external/bsd/mdocml/dist/mdoc_action.c
+++ b/external/bsd/mdocml/dist/mdoc_action.c
@@ -205,7 +205,6 @@ static	const int rsord[RSORD_MAX] = {
 	MDOC__R,
 	MDOC__N,
 	MDOC__V,
-	MDOC__U,
 	MDOC__P,
 	MDOC__Q,
 	MDOC__D,